If the spring of a jack-in-the-box is compressed a distance of 8 cm from its relaxed length and then released what is the speed of the toy head when the spring returns to its natural length? assume the mass of the toy head is 50 g the spring constant is 80 n/m, the toy head news only in the vertical direction. also disregard the mass of the spring. (hint: remember that there are two forms of potential energy in the problem.)
Answers: 1
Physics, 23.06.2019 00:40, bravomichelle75
Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*
Answers: 1
Physics, 23.06.2019 02:00, stella013108
Answer asap 50 points which of the following illustrates how a venus fly trap senses that an insect has landed in its open leaves? 1. using tiny hairs, the leaves sense a change in light. 2. using tiny hairs, the leaves taste a chemical. 3. using tiny hairs, the leaves detect a touch. 4. using tiny hairs, the leaves sense a change in water levels.
Answers: 1
Physics, 23.06.2019 05:40, dhernandez081
Which of the following can enter and exit a closed system? a. matter and energy b. neither energy nor matter c. matter but not energy d. enrgy but not matter
Answers: 1
If the spring of a jack-in-the-box is compressed a distance of 8 cm from its relaxed length and then...
Chemistry, 19.02.2020 21:15
Mathematics, 19.02.2020 21:15
Mathematics, 19.02.2020 21:15
Social Studies, 19.02.2020 21:16
English, 19.02.2020 21:16